karen kasler, karen dewitt and john myers, thank you all very much. >> thank you. >> woodruff: still to come on the newshour, the economic consequences as baby boomers turn 65; the health care challenges in southern sudan; the goldman sachs investment in facebook; and the bleak job market for recent college grads. but first, the other news of the day. here's hari sreenivasan. >> sreenivasan: a flood disaster in the australian outback worsened today, cutting off a coastal city of 75,000 people. rockhampton was the latest of 22 cities and towns in queensland state to be inundated. heavy rain that began before christmas has triggered flooding over an area that's roughly the size of france and germany combined. officials today ordered military flights to deliver food and medical supplies into rockhampton. in egypt, police pursued a possible al qaeda role in the bombing of a coptic christian church during new year's mass. the explosion in alexandria killed 21 people and wounded nearly 100 others. within hours, protesters confronted police for failing to protect christians. there were more